Json and ComplexProperty and nested collection exception : Complex entry original ordinal ''-1'' is invalid for property ... as it''s outside of the collection of length ''0''.

[vborioni-onit]

Bug description

Hi,
here is the repro of the issue, the exception message calling DetectChanges() is :
"Complex entry original ordinal ''-1'' is invalid for property ... as it''s outside of the collection of length ''0''."

Your code

Here is a minimal repro project, it happens no matter the provider that support Json (tested on SqlServer and SqlLite)

https://github.com/vborioni-onit/ef10_json_ComplexProperty_nested_collection_bug

Stack traces

Verbose output

EF Core version

10.0.9

Database provider

No response

Target framework

.NET10

Operating system

Windows 11

IDE

No response

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• ComplexProperty ToJson(): SaveChangesAsync throws 'ordinal -1 is invalid' when nested sub-collection grows (2+ JSON columns) #38299

[AndriySvyryd]

Looks like a dupe of #38299
Try 10.0.10 when it's released